Your mission

• Develop polymer formulations and polymerisation strategies for aevoloop’s novel, polyester-based plastics.
• Define the desired properties of the target polymer and develop a R&D plan to achieve them. Design and optimize synthesis routes and scale-up to the 100+ kilogram range, while assessing hazards and costs.
• Lead and interpret analytical workstreams (DSC, TGA, NMR, SEC, rheology, MFI, viscosity, TAN, mechanical testing, weathering/hydrolytic stability) to define the ideal polymer formulation and achieve the desired mechanical and processing properties.
• Work closely together with process engineers to translate R&D findings into robust, scalable processes.
• Develop compounds based on our polymer technology in close collaboration with external partners to fine-tune the material properties and enable manifold applications.
• Develop sustainable plastic products for a wide range of applications, including extrusion, injection moulding and film blowing to prepare semi-finished product prototypes for 3D printing filaments, fibers or packaging.
• Identify and validate new applications in line with our go-to-market strategy, especially within the fields of packaging, 3D printing, textiles and composites.
• Prepare technical reports and patent applications.
• Ensure that SHEQ and sustainability standards are upheld across all laboratory, pilot and production activities, including knowledge of REACH/CLP, LCA, recycling and end-of-life strategies.

Your profile

• Advanced expertise in polymer chemistry, particularly polyester and polyamide, and at least two years' industrial experience. Ideally, you have a PhD in polymer chemistry, chemistry, or a related field. Experience with biodegradable polymers is advantageous.
• You have hands-on experience in polycondensation (batch and continuous) and polymer processing (compounding, extrusion, injection moulding, film blowing, 3D printing and fibre spinning).
• You have deep familiarity with analytical and characterisation methods: DSC, TGA, NMR, SEC, rheology, mechanical testing (tensile testing, impact strength, HDT), TAN and weathering/hydrolytic stability assessments.
• You have proven skills in agile project management, CRO/supplier coordination and patent screening and filing.
• You are well-versed in regulatory topics such as REACH/CLP, life cycle assessment (LCA) and recycling and end-of-life strategies.
• Excellent communication skills in English (written and spoken); German language skills are advantageous.
• You bring a hands-on mindset, structure your work efficiently, and collaborate seamlessly across disciplines – even under the dynamics of a fast-paced start-up environment.

Why us?

• Pioneers in Next-Gen-Plastics – help redesign plastics for a truly circular economy.
• Mission & Values – curiosity, transparency and responsibility guide us daily.
• Startup Mentality – flat hierarchies, agile work and regular workshops.
• Fast Growth – steep learning curves, regular growth talks and plenty of room to scale your role with the company.
• Well-being Perks – Hansefit membership and fresh fruit boost your overall health and well-being.
• Team Spirit – interdisciplinary crew that challenges norms, enjoys regular team events and drives real innovation.
• Leipzig Hub – thrive in an emerging tech hotspot.
• **Code of Conduct (https://docs.google.com/document/d/1OGGDxPv5MQaNVd9GRH7SHwTnHx7W99tN32Muds4_Gow/edit?usp=sharing) **– integrity, fairness and inclusivity are non-negotiable.

Contact

If you have any questions about working at aevoloop or our vacancies, contact us by mail at join@aevoloop.com (join@aevoloop.com) .

Auf diese Stelle bewerben (https://aevoloop.jobs.personio.com/job/2246507?language=de&display=en#apply)

About us

**We are aevoloop: **A fast-scaling deep-tech startup pioneering Next-Gen-Plastics. Contrary to common belief, plastics remain indispensable where no alternative exists, from critical medical devices to protective gear. That’s why we re-engineer polymers from the ground up, merging the advantages of classic plastics — high-performance and versatile — with a new era of sustainability: turning plastic waste into new materials that are fully circular and biodegradable.

Our mission is clear: Plastics are vital for a liveable future, so we develop next-generation materials that enable a truly circular economy. As we achieve new milestones and drive innovation, we continuously expand our team and expertise — giving you the chance to grow your career alongside our impact.

**Our work is guided by five values: **Pioneering, Conscientious, Disruptive, Transparent and Contributive. These drive us to unite the rigour of responsible research with playful innovation and to act as a trusted catalyst for sustainable material solutions.

Bereitgestellt in Kooperation mit der Bundesagentur für Arbeit.